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-rw-r--r--erts/configure.in7
-rw-r--r--erts/doc/src/erts_alloc.xml18
-rw-r--r--erts/emulator/beam/erl_alloc.c77
-rw-r--r--erts/emulator/beam/erl_alloc.types12
-rw-r--r--erts/emulator/beam/erl_bif_info.c1
-rw-r--r--erts/emulator/hipe/hipe_amd64.c116
-rw-r--r--erts/emulator/sys/common/erl_mmap.c45
-rw-r--r--erts/emulator/sys/common/erl_mmap.h16
-rw-r--r--erts/emulator/sys/common/erl_mseg.c7
-rw-r--r--erts/emulator/sys/common/erl_mseg.h4
-rw-r--r--erts/etc/common/erlexec.c2
11 files changed, 188 insertions, 117 deletions
diff --git a/erts/configure.in b/erts/configure.in
index 0257079c3b..462a13269e 100644
--- a/erts/configure.in
+++ b/erts/configure.in
@@ -3351,6 +3351,13 @@ if test X${enable_hipe} = Xyes; then
AC_DEFINE(HIPE,[1],[Define to enable HiPE])
HIPE_HELPERS="xmerl syntax_tools edoc"
ENABLE_ALLOC_TYPE_VARS="$ENABLE_ALLOC_TYPE_VARS hipe"
+ case "$ARCH" in
+ amd64)
+ # For now exec_alloc is only used for hipe on amd64
+ AC_MSG_NOTICE([Enable exec_alloc for hipe code allocation])
+ ENABLE_ALLOC_TYPE_VARS="$ENABLE_ALLOC_TYPE_VARS exec_alloc"
+ ;;
+ esac
fi
fi
AC_SUBST(HIPE_HELPERS)
diff --git a/erts/doc/src/erts_alloc.xml b/erts/doc/src/erts_alloc.xml
index 0965f9b49c..c54082f8c8 100644
--- a/erts/doc/src/erts_alloc.xml
+++ b/erts/doc/src/erts_alloc.xml
@@ -63,6 +63,9 @@
<tag><c>fix_alloc</c></tag>
<item>A fast allocator used for some frequently used
fixed size data types.</item>
+ <tag><c>exec_alloc</c></tag>
+ <item>Allocator used by hipe for native executable code
+ on specific architectures (x86_64).</item>
<tag><c>std_alloc</c></tag>
<item>Allocator used for most memory blocks not allocated via any of
the other allocators described above.</item>
@@ -80,7 +83,8 @@
the number of system calls made.</item>
</taglist>
<p><c>sys_alloc</c> and <c>literal_alloc</c> are always enabled and
- cannot be disabled. <c>mseg_alloc</c> is always enabled if it is
+ cannot be disabled. <c>exec_alloc</c> is only available if it is needed
+ and cannot be disabled. <c>mseg_alloc</c> is always enabled if it is
available and an allocator that uses it is enabled. All other
allocators can be <seealso marker="#M_e">enabled or disabled</seealso>.
By default all allocators are enabled.
@@ -248,16 +252,17 @@
the currently present allocators:</p>
<list type="bulleted">
<item><c>B: binary_alloc</c></item>
- <item><c>I: literal_alloc</c></item>
<item><c>D: std_alloc</c></item>
<item><c>E: ets_alloc</c></item>
<item><c>F: fix_alloc</c></item>
<item><c>H: eheap_alloc</c></item>
+ <item><c>I: literal_alloc</c></item>
<item><c>L: ll_alloc</c></item>
<item><c>M: mseg_alloc</c></item>
<item><c>R: driver_alloc</c></item>
<item><c>S: sl_alloc</c></item>
<item><c>T: temp_alloc</c></item>
+ <item><c>X: exec_alloc</c></item>
<item><c>Y: sys_alloc</c></item>
</list>
<p>The following flags are available for configuration of
@@ -576,6 +581,15 @@
and is usually sufficient. The flag is ignored on 32-bit
architectures.</item>
</taglist>
+ <p>The following flag is special for <c>exec_alloc</c>:</p>
+ <taglist>
+ <tag><marker id="MIscs"/><c><![CDATA[+MXscs <size in MB>]]></c></tag>
+ <item>
+ <c>exec_alloc</c> super carrier size (in MB). The amount of
+ <em>virtual</em> address space reserved for native executable code
+ used by hipe on specific architectures (x86_64). The default is 512 MB.
+ </item>
+ </taglist>
<p>Instrumentation flags:</p>
<taglist>
<tag><marker id="Mim"/><c>+Mim true|false</c></tag>
diff --git a/erts/emulator/beam/erl_alloc.c b/erts/emulator/beam/erl_alloc.c
index efe31193b9..00911ff027 100644
--- a/erts/emulator/beam/erl_alloc.c
+++ b/erts/emulator/beam/erl_alloc.c
@@ -30,6 +30,7 @@
#endif
#define ERTS_ALLOC_C__
#define ERTS_ALC_INTERNAL__
+#define ERTS_WANT_MEM_MAPPERS
#include "sys.h"
#define ERL_THREADS_EMU_INTERNAL__
#include "erl_threads.h"
@@ -131,6 +132,9 @@ static ErtsAllocatorState_t ets_alloc_state;
static ErtsAllocatorState_t driver_alloc_state;
static ErtsAllocatorState_t fix_alloc_state;
static ErtsAllocatorState_t literal_alloc_state;
+#ifdef ERTS_ALC_A_EXEC
+static ErtsAllocatorState_t exec_alloc_state;
+#endif
static ErtsAllocatorState_t test_alloc_state;
typedef struct {
@@ -216,6 +220,7 @@ typedef struct {
struct au_init driver_alloc;
struct au_init fix_alloc;
struct au_init literal_alloc;
+ struct au_init exec_alloc;
struct au_init test_alloc;
} erts_alc_hndl_args_init_t;
@@ -339,6 +344,38 @@ set_default_literal_alloc_opts(struct au_init *ip)
#endif
}
+#ifdef ERTS_ALC_A_EXEC
+static void
+set_default_exec_alloc_opts(struct au_init *ip)
+{
+ SET_DEFAULT_ALLOC_OPTS(ip);
+ ip->enable = 1;
+ ip->thr_spec = 0;
+ ip->disable_allowed = 0;
+ ip->thr_spec_allowed = 0;
+ ip->carrier_migration_allowed = 0;
+ ip->atype = BESTFIT;
+ ip->init.bf.ao = 1;
+ ip->init.util.ramv = 0;
+ ip->init.util.mmsbc = 0;
+ ip->init.util.sbct = ~((UWord) 0);
+ ip->init.util.name_prefix = "exec_";
+ ip->init.util.alloc_no = ERTS_ALC_A_EXEC;
+ ip->init.util.mmbcs = 0; /* No main carrier */
+ ip->init.util.ts = ERTS_ALC_MTA_EXEC;
+ ip->init.util.asbcst = 0;
+ ip->init.util.rsbcst = 0;
+ ip->init.util.rsbcmt = 0;
+ ip->init.util.rmbcmt = 0;
+ ip->init.util.acul = 0;
+
+ ip->init.util.mseg_alloc = &erts_alcu_mmapper_mseg_alloc;
+ ip->init.util.mseg_realloc = &erts_alcu_mmapper_mseg_realloc;
+ ip->init.util.mseg_dealloc = &erts_alcu_mmapper_mseg_dealloc;
+ ip->init.util.mseg_mmapper = &erts_exec_mmapper;
+}
+#endif /* ERTS_ALC_A_EXEC */
+
static void
set_default_temp_alloc_opts(struct au_init *ip)
{
@@ -660,6 +697,9 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop)
set_default_fix_alloc_opts(&init.fix_alloc,
fix_type_sizes);
set_default_literal_alloc_opts(&init.literal_alloc);
+#ifdef ERTS_ALC_A_EXEC
+ set_default_exec_alloc_opts(&init.exec_alloc);
+#endif
set_default_test_alloc_opts(&init.test_alloc);
if (argc && argv)
@@ -689,6 +729,9 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop)
init.driver_alloc.thr_spec = 0;
init.fix_alloc.thr_spec = 0;
init.literal_alloc.thr_spec = 0;
+#ifdef ERTS_ALC_A_EXEC
+ init.exec_alloc.thr_spec = 0;
+#endif
#endif
/* Make adjustments for carrier migration support */
@@ -702,6 +745,9 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop)
adjust_carrier_migration_support(&init.driver_alloc);
adjust_carrier_migration_support(&init.fix_alloc);
adjust_carrier_migration_support(&init.literal_alloc);
+#ifdef ERTS_ALC_A_EXEC
+ adjust_carrier_migration_support(&init.exec_alloc);
+#endif
if (init.erts_alloc_config) {
/* Adjust flags that erts_alloc_config won't like */
@@ -717,6 +763,9 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop)
init.driver_alloc.thr_spec = 0;
init.fix_alloc.thr_spec = 0;
init.literal_alloc.thr_spec = 0;
+#ifdef ERTS_ALC_A_EXEC
+ init.exec_alloc.thr_spec = 0;
+#endif
/* No carrier migration */
init.temp_alloc.init.util.acul = 0;
@@ -729,6 +778,9 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop)
init.driver_alloc.init.util.acul = 0;
init.fix_alloc.init.util.acul = 0;
init.literal_alloc.init.util.acul = 0;
+#ifdef ERTS_ALC_A_EXEC
+ init.exec_alloc.init.util.acul = 0;
+#endif
}
#ifdef ERTS_SMP
@@ -746,6 +798,9 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop)
adjust_tpref(&init.driver_alloc, erts_no_schedulers);
adjust_tpref(&init.fix_alloc, erts_no_schedulers);
adjust_tpref(&init.literal_alloc, erts_no_schedulers);
+#ifdef ERTS_ALC_A_EXEC
+ adjust_tpref(&init.exec_alloc, erts_no_schedulers);
+#endif
#else
/* No thread specific if not smp */
@@ -765,6 +820,9 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop)
refuse_af_strategy(&init.driver_alloc);
refuse_af_strategy(&init.fix_alloc);
refuse_af_strategy(&init.literal_alloc);
+#ifdef ERTS_ALC_A_EXEC
+ refuse_af_strategy(&init.exec_alloc);
+#endif
#ifdef ERTS_SMP
if (!init.temp_alloc.thr_spec)
@@ -809,6 +867,9 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop)
set_au_allocator(ERTS_ALC_A_DRIVER, &init.driver_alloc, ncpu);
set_au_allocator(ERTS_ALC_A_FIXED_SIZE, &init.fix_alloc, ncpu);
set_au_allocator(ERTS_ALC_A_LITERAL, &init.literal_alloc, ncpu);
+#ifdef ERTS_ALC_A_EXEC
+ set_au_allocator(ERTS_ALC_A_EXEC, &init.exec_alloc, ncpu);
+#endif
set_au_allocator(ERTS_ALC_A_TEST, &init.test_alloc, ncpu);
for (i = ERTS_ALC_A_MIN; i <= ERTS_ALC_A_MAX; i++) {
@@ -865,7 +926,11 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop)
start_au_allocator(ERTS_ALC_A_LITERAL,
&init.literal_alloc,
&literal_alloc_state);
-
+#ifdef ERTS_ALC_A_EXEC
+ start_au_allocator(ERTS_ALC_A_EXEC,
+ &init.exec_alloc,
+ &exec_alloc_state);
+#endif
start_au_allocator(ERTS_ALC_A_TEST,
&init.test_alloc,
&test_alloc_state);
@@ -1500,6 +1565,16 @@ handle_args(int *argc, char **argv, erts_alc_hndl_args_init_t *init)
else
handle_au_arg(&init->literal_alloc, &argv[i][3], argv, &i, 0);
break;
+ case 'X':
+ if (has_prefix("scs", argv[i]+3)) {
+#ifdef ERTS_ALC_A_EXEC
+ init->mseg.exec_mmap.scs =
+#endif
+ get_mb_value(argv[i]+6, argv, &i);
+ }
+ else
+ handle_au_arg(&init->exec_alloc, &argv[i][3], argv, &i, 0);
+ break;
case 'D':
handle_au_arg(&init->std_alloc, &argv[i][3], argv, &i, 0);
break;
diff --git a/erts/emulator/beam/erl_alloc.types b/erts/emulator/beam/erl_alloc.types
index 14067283bd..0649ed903a 100644
--- a/erts/emulator/beam/erl_alloc.types
+++ b/erts/emulator/beam/erl_alloc.types
@@ -87,6 +87,9 @@ allocator EHEAP true eheap_alloc
allocator ETS true ets_alloc
allocator FIXED_SIZE true fix_alloc
allocator LITERAL true literal_alloc
++if exec_alloc
+allocator EXEC true exec_alloc
++endif
+else # Non smp build
@@ -98,6 +101,9 @@ allocator EHEAP false eheap_alloc
allocator ETS false ets_alloc
allocator FIXED_SIZE false fix_alloc
allocator LITERAL false literal_alloc
++if exec_alloc
+allocator EXEC false exec_alloc
++endif
+endif
@@ -335,8 +341,14 @@ type SL_MPATHS SHORT_LIVED SYSTEM sl_migration_paths
# Currently most hipe code use this type.
type HIPE SYSTEM SYSTEM hipe_data
++if exec_alloc
+type HIPE_EXEC EXEC CODE hipe_code
++endif
+
+endif
+
+
+if heap_frag_elim_test
type SSB SHORT_LIVED PROCESSES ssb
diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c
index 0b2c26a548..163070e85a 100644
--- a/erts/emulator/beam/erl_bif_info.c
+++ b/erts/emulator/beam/erl_bif_info.c
@@ -22,6 +22,7 @@
# include "config.h"
#endif
+#define ERTS_WANT_MEM_MAPPERS
#include "sys.h"
#include "erl_vm.h"
#include "global.h"
diff --git a/erts/emulator/hipe/hipe_amd64.c b/erts/emulator/hipe/hipe_amd64.c
index 1bb336637d..9d7ada18bc 100644
--- a/erts/emulator/hipe/hipe_amd64.c
+++ b/erts/emulator/hipe/hipe_amd64.c
@@ -83,21 +83,6 @@ int hipe_patch_call(void *callAddress, void *destAddress, void *trampoline)
return 0;
}
-/*
- * Memory allocator for executable code.
- *
- * This is required on AMD64 because some Linux kernels
- * (including 2.6.10-rc1 and newer www.kernel.org ones)
- * default to non-executable memory mappings, causing
- * ordinary malloc() memory to be non-executable.
- *
- * Implementing this properly also allows us to ensure that
- * executable code ends up in the low 2GB of the address space,
- * as required by HiPE/AMD64's small code model.
- */
-static unsigned int code_bytes;
-static char *code_next;
-
#if 0 /* change to non-zero to get allocation statistics at exit() */
static unsigned int total_mapped, nr_joins, nr_splits, total_alloc, nr_allocs, nr_large, total_lost;
static unsigned int atexit_done;
@@ -121,101 +106,20 @@ static void atexit_alloc_code_stats(void)
#define ALLOC_CODE_STATS(X) do{}while(0)
#endif
-/* FreeBSD 6.1 breakage */
-#if !defined(MAP_ANONYMOUS) && defined(MAP_ANON)
-#define MAP_ANONYMOUS MAP_ANON
-#endif
-
-static int morecore(unsigned int alloc_bytes)
-{
- unsigned int map_bytes;
- char *map_hint, *map_start;
-
- /* Page-align the amount to allocate. */
- map_bytes = (alloc_bytes + 4095) & ~4095;
-
- /* Round up small allocations. */
- if (map_bytes < 1024*1024)
- map_bytes = 1024*1024;
- else
- ALLOC_CODE_STATS(++nr_large);
-
- /* Create a new memory mapping, ensuring it is executable
- and in the low 2GB of the address space. Also attempt
- to make it adjacent to the previous mapping. */
- map_hint = code_next + code_bytes;
-#if !defined(MAP_32BIT)
- /* FreeBSD doesn't have MAP_32BIT, and it doesn't respect
- a plain map_hint (returns high mappings even though the
- hint refers to a free area), so we have to use both map_hint
- and MAP_FIXED to get addresses below the 2GB boundary.
- This is even worse than the Linux/ppc64 case.
- Similarly, Solaris 10 doesn't have MAP_32BIT,
- and it doesn't respect a plain map_hint. */
- if (!map_hint) /* first call */
- map_hint = (char*)(512*1024*1024); /* 0.5GB */
-#endif
- if ((unsigned long)map_hint & 4095)
- abort();
- map_start = mmap(map_hint, map_bytes,
- PROT_EXEC|PROT_READ|PROT_WRITE,
- MAP_PRIVATE|MAP_ANONYMOUS
-#if defined(MAP_32BIT)
- |MAP_32BIT
-#elif defined(__FreeBSD__) || defined(__sun__)
- |MAP_FIXED
-#endif
- ,
- -1, 0);
- ALLOC_CODE_STATS(fprintf(stderr, "%s: mmap(%p,%u,...) == %p\r\n", __FUNCTION__, map_hint, map_bytes, map_start));
-#if !defined(MAP_32BIT)
- if (map_start != MAP_FAILED &&
- (((unsigned long)map_start + (map_bytes-1)) & ~0x7FFFFFFFUL)) {
- fprintf(stderr, "mmap with hint %p returned code memory %p\r\n", map_hint, map_start);
- abort();
- }
-#endif
- if (map_start == MAP_FAILED)
- return -1;
-
- ALLOC_CODE_STATS(total_mapped += map_bytes);
-
- /* Merge adjacent mappings, so the trailing portion of the previous
- mapping isn't lost. In practice this is quite successful. */
- if (map_start == map_hint) {
- ALLOC_CODE_STATS(++nr_joins);
- code_bytes += map_bytes;
-#if !defined(MAP_32BIT)
- if (!code_next) /* first call */
- code_next = map_start;
-#endif
- } else {
- ALLOC_CODE_STATS(++nr_splits);
- ALLOC_CODE_STATS(total_lost += code_bytes);
- code_next = map_start;
- code_bytes = map_bytes;
- }
-
- ALLOC_CODE_STATS(atexit_alloc_code_stats());
-
- return 0;
-}
-
+/*
+ * Memory allocator for executable code.
+ *
+ * We use a dedicated allocator for executable code (from OTP 19.0)
+ * to make sure the memory we get is executable (PROT_EXEC)
+ * and to ensure that executable code ends up in the low 2GB
+ * of the address space, as required by HiPE/AMD64's small code model.
+ */
static void *alloc_code(unsigned int alloc_bytes)
{
- void *res;
-
- /* Align function entries. */
- alloc_bytes = (alloc_bytes + 3) & ~3;
-
- if (code_bytes < alloc_bytes && morecore(alloc_bytes) != 0)
- return NULL;
ALLOC_CODE_STATS(++nr_allocs);
ALLOC_CODE_STATS(total_alloc += alloc_bytes);
- res = code_next;
- code_next += alloc_bytes;
- code_bytes -= alloc_bytes;
- return res;
+
+ return erts_alloc(ERTS_ALC_T_HIPE_EXEC, alloc_bytes);
}
void *hipe_alloc_code(Uint nrbytes, Eterm callees, Eterm *trampolines, Process *p)
diff --git a/erts/emulator/sys/common/erl_mmap.c b/erts/emulator/sys/common/erl_mmap.c
index f5f40b35a8..38970bd24e 100644
--- a/erts/emulator/sys/common/erl_mmap.c
+++ b/erts/emulator/sys/common/erl_mmap.c
@@ -356,6 +356,12 @@ char* erts_literals_start;
UWord erts_literals_size;
#endif
+#ifdef ERTS_ALC_A_EXEC
+ErtsMemMapper erts_exec_mmapper;
+#endif
+
+
+
#define ERTS_MMAP_SIZE_SC_SA_INC(SZ) \
do { \
mm->size.supercarrier.used.total += (SZ); \
@@ -1351,10 +1357,39 @@ os_unreserve_physical(char *ptr, UWord size)
}
static void *
-os_mmap_virtual(char *ptr, UWord size)
+os_mmap_virtual(char *ptr, UWord size, int exec)
{
- void *res = mmap((void *) ptr, (size_t) size, ERTS_MMAP_VIRTUAL_PROT,
- ERTS_MMAP_VIRTUAL_FLAGS, ERTS_MMAP_FD, 0);
+ int flags = ERTS_MMAP_VIRTUAL_FLAGS;
+ void* res;
+
+#ifdef ERTS_ALC_A_EXEC
+ if (exec) {
+ ASSERT(!ptr);
+ /* OTP-19.0: Nice hack below cut-and-pasted from hipe_amd64.c */
+
+# ifdef MAP_32BIT
+ /* If we got MAP_32BIT (Linux), then use that to ask for low memory */
+ flags |= MAP_32BIT;
+# else
+ /* FreeBSD doesn't have MAP_32BIT, and it doesn't respect
+ a plain map_hint (returns high mappings even though the
+ hint refers to a free area), so we have to use both map_hint
+ and MAP_FIXED to get addresses below the 2GB boundary.
+ This is even worse than the Linux/ppc64 case.
+ Similarly, Solaris 10 doesn't have MAP_32BIT,
+ and it doesn't respect a plain map_hint. */
+ ptr = (char*)(512*1024*1024); /* 0.5GB */
+
+# if defined(__FreeBSD__) || defined(__sun__)
+ flags |= MAP_FIXED;
+# endif
+# endif /* !MAP_32BIT */
+ }
+#else /* !ERTS_ALC_A_EXEC */
+ ASSERT(!exec);
+#endif
+ res = mmap((void *) ptr, (size_t) size, ERTS_MMAP_VIRTUAL_PROT,
+ flags, ERTS_MMAP_FD, 0);
if (res == (void *) MAP_FAILED)
return NULL;
return res;
@@ -2177,7 +2212,7 @@ erts_mmap_init(ErtsMemMapper* mm, ErtsMMapInit *init, int executable)
ptr = (char *) ERTS_PAGEALIGNED_CEILING(init->virtual_range.start);
end = (char *) ERTS_PAGEALIGNED_FLOOR(init->virtual_range.end);
sz = end - ptr;
- start = os_mmap_virtual(ptr, sz);
+ start = os_mmap_virtual(ptr, sz, executable);
if (!start || start > ptr || start >= end)
erts_exit(1,
"erts_mmap: Failed to create virtual range for super carrier\n");
@@ -2202,7 +2237,7 @@ erts_mmap_init(ErtsMemMapper* mm, ErtsMMapInit *init, int executable)
sz = ERTS_PAGEALIGNED_CEILING(init->scs);
#ifdef ERTS_HAVE_OS_PHYSICAL_MEMORY_RESERVATION
if (!init->scrpm) {
- start = os_mmap_virtual(NULL, sz);
+ start = os_mmap_virtual(NULL, sz, executable);
mm->reserve_physical = os_reserve_physical;
mm->unreserve_physical = os_unreserve_physical;
virtual_map = 1;
diff --git a/erts/emulator/sys/common/erl_mmap.h b/erts/emulator/sys/common/erl_mmap.h
index 30548bd0b0..8a7530d943 100644
--- a/erts/emulator/sys/common/erl_mmap.h
+++ b/erts/emulator/sys/common/erl_mmap.h
@@ -55,6 +55,11 @@ typedef struct {
#define ERTS_MMAP_INIT_LITERAL_INITER \
{{NULL, NULL}, {NULL, NULL}, ERTS_LITERAL_VIRTUAL_AREA_SIZE, 1, (1 << 10), 0}
+#define ERTS_HIPE_EXEC_VIRTUAL_AREA_SIZE (UWORD_CONSTANT(512)*1024*1024)
+
+#define ERTS_MMAP_INIT_HIPE_EXEC_INITER \
+ {{NULL, NULL}, {NULL, NULL}, ERTS_HIPE_EXEC_VIRTUAL_AREA_SIZE, 1, (1 << 10), 0}
+
typedef struct ErtsMemMapper_ ErtsMemMapper;
void *erts_mmap(ErtsMemMapper*, Uint32 flags, UWord *sizep);
@@ -126,10 +131,17 @@ Eterm erts_mmap_debug_info(ErtsMemMapper*, struct process*);
# define ERTS_HAVE_OS_MMAP 1
#endif
+#ifdef ERTS_WANT_MEM_MAPPERS
+# include "erl_alloc_types.h"
+
extern ErtsMemMapper erts_dflt_mmapper;
-#if defined(ARCH_64) && defined(ERTS_HAVE_OS_PHYSICAL_MEMORY_RESERVATION)
+# if defined(ARCH_64) && defined(ERTS_HAVE_OS_PHYSICAL_MEMORY_RESERVATION)
extern ErtsMemMapper erts_literal_mmapper;
-#endif
+# endif
+# ifdef ERTS_ALC_A_EXEC
+extern ErtsMemMapper erts_exec_mmapper;
+# endif
+#endif /* ERTS_WANT_MEM_MAPPERS */
/*#define HARD_DEBUG_MSEG*/
#ifdef HARD_DEBUG_MSEG
diff --git a/erts/emulator/sys/common/erl_mseg.c b/erts/emulator/sys/common/erl_mseg.c
index f0fbb682b0..f373302e65 100644
--- a/erts/emulator/sys/common/erl_mseg.c
+++ b/erts/emulator/sys/common/erl_mseg.c
@@ -31,6 +31,7 @@
# include "config.h"
#endif
+#define ERTS_WANT_MEM_MAPPERS
#include "sys.h"
#include "erl_mseg.h"
#include "global.h"
@@ -1402,6 +1403,12 @@ erts_mseg_init(ErtsMsegInit_t *init)
erts_mtx_init(&init_atoms_mutex, "mseg_init_atoms");
+#ifdef ERTS_ALC_A_EXEC
+ /* Initialize erts_exec_mapper *FIRST*, to increase probability
+ * of getting low memory for HiPE AMD64's small code model.
+ */
+ erts_mmap_init(&erts_exec_mmapper, &init->exec_mmap, 1);
+#endif
erts_mmap_init(&erts_dflt_mmapper, &init->dflt_mmap, 0);
#if defined(ARCH_64) && defined(ERTS_HAVE_OS_PHYSICAL_MEMORY_RESERVATION)
erts_mmap_init(&erts_literal_mmapper, &init->literal_mmap, 0);
diff --git a/erts/emulator/sys/common/erl_mseg.h b/erts/emulator/sys/common/erl_mseg.h
index 2acd8f8505..556a135798 100644
--- a/erts/emulator/sys/common/erl_mseg.h
+++ b/erts/emulator/sys/common/erl_mseg.h
@@ -61,6 +61,7 @@ typedef struct {
Uint nos;
ErtsMMapInit dflt_mmap;
ErtsMMapInit literal_mmap;
+ ErtsMMapInit exec_mmap;
} ErtsMsegInit_t;
#define ERTS_MSEG_INIT_DEFAULT_INITIALIZER \
@@ -70,7 +71,8 @@ typedef struct {
10, /* mcs: Max cache size */ \
1000, /* cci: Cache check interval */ \
ERTS_MMAP_INIT_DEFAULT_INITER, \
- ERTS_MMAP_INIT_LITERAL_INITER \
+ ERTS_MMAP_INIT_LITERAL_INITER, \
+ ERTS_MMAP_INIT_HIPE_EXEC_INITER \
}
typedef struct {
diff --git a/erts/etc/common/erlexec.c b/erts/etc/common/erlexec.c
index 54da59e50d..96259f8fa6 100644
--- a/erts/etc/common/erlexec.c
+++ b/erts/etc/common/erlexec.c
@@ -74,6 +74,7 @@ static const char plusM_au_allocs[]= {
'R', /* driver_alloc */
'S', /* sl_alloc */
'T', /* temp_alloc */
+ 'X', /* exec_alloc */
'Z', /* test_alloc */
'\0'
};
@@ -123,6 +124,7 @@ static char *plusM_other_switches[] = {
"Ytp",
"Ytt",
"Iscs",
+ "Xscs",
NULL
};
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-30 20:40:31 +0000